"Trainwreck" star criticizes the publication for including her in its special issue

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Amy Schumer is seen on the set of 'Inside Amy Schumer' on February 29, 2016 in New York City.

Amy Schumer isn't happy with Glamour.

The "Inside Amy Schumer" star took to Instagram to post a snippet of the magazine's photo, in which she is listed under the headline "Women Who Inspire Us." Included in the list is Schumer, Melissa McCarthy, Adele and Ashley Graham, all of whom are part of the publication's plus-size only issue. But the actress isn't happy that the magazine has listed her as "plus size."

"I think there's nothing wrong with being plus size. Beautiful healthy women. Plus size is considered size 16 in America. I go between a size 6 and an 8. @glamourmag put me in their plus size only issue without asking or letting me know and it doesn't feel right to me," she began her caption. "Young girls seeing my body type thinking that is plus size? What are your thoughts? Mine are not cool glamour not glamourous."

Schumer is not the cover of this issue, but she has been on the cover of the magazine before. Although she is part of the "women who inspire" section, a spokesperson for the magazine tells E! News that it did not label her as "plus size."

"First off, we love Amy, and our readers do too – which is why we featured her on the cover of Glamour last year," the statement reads. "The cover line on this special edition – which is aimed at women size 12 and up – simply says 'Women Who Inspire Us,' since we believe her passionate and vocal message of body positivity IS inspiring, as is the message of the many other women, of all sizes, featured. The edition did not describe her as plus-size. We are sorry if we offended her in any way."

The "Trainwreck" star has been very vocal in the past about body image, even tearing up during a discussion with Maria Shriver on "Today."

"It's an emotional thing," she revealed. "It's been a struggle for me my whole life, and especially just being in the entertainment industry. Standing on a stage in front of people, I can't perform my best or be confident if I'm not sure – if I'm pulling at something [I'm wearing]. And sometimes I would just want to throw in the towel and be like, 'I'm not gonna go do standup tonight.'"

She credits her stylist, Leesa Evans, for changing the way she feels about herself. "It was such a gift to be given to learn how to dress, to feel good about myself, and that's the gift we want to give to everyone, everywhere," she said.